Question

Give a reason for the following:

Transition metals possess a great tendency to form complex compounds.

Why do transition metal ions possess a great tendency to form complexes?

Explain the following:

Why do transition metal ions possess a great tendency to form complexes?

Answer 1

Transition metals produce several coordination complexes for the reasons listed below:

1. Transition metal ions have small sizes and a high charge density.
2. The presence of vacant d-orbitals of sufficient energy that can accept lone pairs of electrons given by other groups.

Answer 2

1. Small size: The small size of transition metal ions allows ligands to approach closely and form stable complexes.
2. High nuclear charge: A higher positive charge on the nucleus attracts electron pairs from ligands strongly.
3. Availability of vacant d-orbitals: Transition metals have vacant d-orbitals of suitable energy that can accept lone pairs from ligands, forming coordinate bonds.

These factors collectively give transition metal ions a strong tendency to form complexes easily.